Ventilator.



No. 793,670. PATENTED JULY 4, 1905. L. W. LOMBARD & B. MOARTHUR. VENTILATOR.

APPLIGATION FILED 0016,1904

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. f EzraMkArlhun -7 PATENTED JULY 4, 1905. L. w. LOMBARD & E. MQARTHUR.

VENTILATOR.

APPLICATION FILED 00'1'. 5,1904.

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NTTED STATES Patented July 4, 1905.

PATENT OEEIcE.

VENTILATOR- SPECIFICATION forming part of Letters Patent No. 793,670, dated J ly 4, 190

Application filed October 5, 1904. Serial No. 227,240.

To all whom it may concern.-

Be it known that we, LEVI W. LOMBARD and EZRA MOARTHUR, citizens of the United States of America, and both residents of Medford, in the countyof Middlesex and State of Massachusetts, have in vented certain new and useful Improvements in Ventilators, of which the following is a specification.

This invention relates to car-ventilators, and has for its object the production of a ventilator in which the foul air may be readily exhausted from the interior of the car and at the same time to prevent the admission of fresh air upon the heads of the occupants of said car. Heretoforein most systems of ventilating the attempt has been made to ventilate the car by indrawing fresh air from the top of the car, which creates a strong draft, which is frequently a discomfort to the passengers and oftentimes a menace to their health.

The invention consists in certain novel features of construction and arrangement of parts, which will be readily understood by reference to the description of the drawings and to the claims to be hereinafter given.

Of the drawings, Figure 1 represents an elevation of an ordinary passenger-car embodying the features of this invention. Fig. 2 represents a transverse sectional elevation of the monitor-top thereof with our improved ventilating device attached thereto. Fig. 3 represents a sectional plan of a portion of one side of said monitor-top. Fig. 4 represents a sectional elevation of the same parts, and Fig. 5 is a detail of the adjustable connection of the operating-lever.

Similar characters designate like parts throughout the several figures of the drawings.

In the drawings, 10 represents a car of any ordinary construction provided with the ordinary monitor-top 11. The roof 12 of said monitor-top ordinarily overhangs the side walls 13 thereof. Outside of the side walls 13 of the monitor-top and parallel therewith a second wall 14 is provided, said wall 14: having glass panels 15, so that the outward appearance of the car is practically the same as before the conduit 16 had been provided by the insertion of the additional wall 14. This conduit 16 is made by means of the monitor-roof 12, the side walls 13 14, and the main roof 17 of the car 10, and said conduit extends longitudinally from end to end of said monitor-top 11. Either end of said conduit is provided with a gate or other closing device 18 18*, and said conduit communicates with the interior-of the car by means of a plurality of openings 19. Each of the openings 19 is provided with a hinged closure 20, consisting of a glass panel. Each of the closures 20 is mounted upon a spindle 21, extending downwardly through the main roof 17 of the car into the interior thereof, and each of said spindles is provided with a laterally-projecting arm 22. One half of the closures 20 are arranged to open inwardly of said car in one direction, while the other half are adapted to open in the opposite direction. All of the arms 22 of the closures 20 on one side of the car opening in one direction are connected by a connector 23, while all of the arms on that side of the car of closures opening in the opposite direction are connected together by a similar connector 24:.

The gate 18 is mounted upon a spindle 25, extending downwardly into the interior of the car, and said spindle is provided with a laterally-projecting arm 26, the outer end of which is provided with a handle 27, by which said gate 18 may be operated to open or close the end of said conduit, as desired. The arm 26 is connected by a link 28 with one of the arms 22 to operate that set of closures 20 which open inwardly toward said closing device or gate 18. The gate 18* is provided with a similar spindle 29, the lower end of which is provided with an arm 30 and handle 31, said arm being connected, by means of a link 32, to an arm 22 of the opposite set of closures 20. The links 28 32 are adjustably connected to the arms 26 30, so that the amount of movement of the closures 20 may be varied at will. The gates 18 18* have secured thereto laterallyprojecting arms, the outer ends of which are connected bya link 33, so that when a handle is operated to open one of said gates the same operation will close the other gate through the medium of said link 33 in an obvious manner. It is evident, therefore, that from eitherend of the car the operation of all of the closures 20 and both gates may be controlled.

In the operation of this device it is intended that the gates 18 18* at the forward end of the car should always be closed, and when so closed the closures 20 coacting with said closed gates will be opened into the car toward the forward end thereof, while at the same time the gates at the rear of the conduit 16 will be opened, and the closures 20 coacting with said open gate will .be closed, so that as the car moves in a forward direction the fresh air coming in through the door and windows and other openings will be carried to the monitor-top and through the openings 19 of said conduit to be emitted from the rear or open end thereof, thus creating a draft which will exhaust the foul air from the top of the car and create a suction which will indraw fresh air from the lower portion thereof. By such a construction the objection of having a strong draft of cold air coming downwardly from the top of the car onto the heads and necks of passen-' gers is entirely avoided, which, it is obvious, is a great advantage. If a car is constructed, as is often the case, for use in one direction only, the reargate 18* to said conduit may be entirely dispensed with, and all of the closures 20 may be made to operate in but one directionthat is, inwardly toward the front of the car. v

It is believed that with the foregoing the operation of the invention will be thoroughly understood without any further description.

Having thus described our invention, we claim 1. The combination with a car, of a conduit extending longitudinally thereof provided with sets of openings communicating with the interior of said car, hinged closures to one set of said openings swinging in one direction, hinged closures to the remainder of said openings swinging in the opposite direction, devices for closing either end of said conduit, and a connector between each of said closing devices and one set of hinged closures.

2. The combination with a car, of a conduit extending longitudinally thereof provided with sets of openings communicating with the interior of said car, hinged closures to one set of said openings swinging in one direction, hinged closures to the remainder of said openings swinging in the opposite direction, devices for closing either end of said conduit, a connector between each of said closing devices and one set of hinged closures, and means extending into said car for operating either closing device.

3. The combination with a car, of a conduit extending longitudinally thereof provided with sets of openings communicating with the interior of said car, hinged closures to one set of said openings swinging in one direction,

with the interior of said car, a device for clos-- ing the front end of said conduit, a plurality of hinged closures to said openings opening into said car toward the front thereof, connectors between said end-closing device and said hinged closures, and means extending into said car for operating said end-closing device and said hinged closures in unison.

5. The combination with a car, of a conduit extending longitudinally thereof provided with a plurality of openings communicating with the interior of said car, a device for closing the front end of said conduit, a plurality of hinged closures to said openings opening into said car toward the front thereof, connectors between said end-closing device and said hinged closures, means extending into said car for operating said end-closing device and said hinged closures in unison, and means for adjusting said connectors to vary the opening of said closures.

6. The combination with acar, of a conduit extending longitudinally thereof provided with sets of openings communicating with the interior of said car, a device at either end of said conduit for closing the end thereof, hinged closures to one set of said openings opening into said car in one direction, hinged closures to the remainder of said openings opening in the opposite direction, and a connector between each set of hinged closures with one of said end-closing devices so arranged that the closing of the front-closing device will open the set of hinged closures opening into the car toward that end-closing device.

7. The combination with a car of a conduit extending longitudinally thereof provided with sets of openings communicating with the interior of said car, a device at either end of said conduit for closing the end thereof, hinged closures to one set of said openings opening into said car in one direction, hinged closures to the remainder of said openings opening in the opposite direction, a connector between each set of hinged closures with one of said end-closing devices so arranged that the closing of the front-closing device will open the set of hinged closures opening into the car toward that end-closing device, and means for adjusting said connectors to vary the opening of said closures.

8. The combination with a car, of a conduit With a plurality of openings communicating with the interior of said car, a hinged closure to each of said openings, a gate at each end of said conduit, and mechanism connecting both of said gates with said closures whereby all of said gates and closures may be operated in unison to effect a suction in said conduit to cause the foul air in said car to be drawn through said conduit and emitted from the rear end thereof.

9. The combination With a car, of a conduit extending longitudinally thereof provided with a plurality of openings communicating with the interior of said car, sets of alternating hinged closures to said openings the closures of one set opening in the opposite direetion to those of the other set, operating-levers secured respectively to said sets of closures, a gate at each end of said conduit, a connector between one gate and the lever of one set of closures, and a connector between the other gate and the lever of the other set of closures.

Signed by us at Boston, Massachusetts, this 30th day of September, 1904:.

LEVI W. LOMBARD. EZRA MoARTI-IUR.

Witnesses:

EDNA (J. CLEVELAND, WALTER E. LOMRARD. 

